Boring-tool.



No. 764,609. PATENTED JULY 12, 1904.

W LODGE BORING TOOL.

APPLIOATIOH PILX-JD MAR. 21, 1904.

10 MODEL.

UNITED STATES Patented July 12, 1904 PATENT EETCE.

IVILLIAM LODGE, OF CINCINNATI, OHIO, ASSIGNOR TO THE LODGE &

SHIPLEY MACHINE TOOL COMPANY, OF CINCINNATI, OHIO, A COR- PORA'IION.

BORING-TOOL- SPECIFICATION forming part of Letters Patent No. 764,609,dated July 12, I904.

Application filed March 21, 1904.

To a wit/mt it puny concern:

Be it known that I, \YILLIAM LODGE, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvements in Boring-Tools, ofwhich the following is a specification.

My invention relates to a new and improved boring bar or tool or aboring-machine particularly adapted to support a cutting-tool ofhigh-speed steel.

The features of my invention are more fully set forth in the descriptionof the accompanying drawings, forming a part of this specification, inwhich- Figure 1 is a side elevation of my improved tool. Fig. 2 is a topplan view of the same, partly in section. Fig. 3 is a section on line a:"1;. Fig. 2. Fig. 4 is a section on line in 00, Fig. 2. Fig. 5 is a planview of the boringtool blade.

A represents the two-part tool-stock, one end of which, B, is adapted tobe secured to the live element of the boring-machine, the other end, C,being-a sleeve in which the part B turns, said sleeve being adapted tobe supported by the dead element of the boringmachine. The intermediateportion of the stock is provided with a diametrical slot, in which isinserted the cutter D, and it is also provided with a transversediametrical slot into which is driven a fastening-pin E, which engagesinto the notch a at one end of the cutter D. The end C of the stock isbored endwise to formthe oil-well b.

0 represents ducts from the oil-well 7) to a longitudinal groove (Z inthe periphery of the changed.

Serial N5. 199,252. (No model.)

part C. The sleeve C fits onto the reduced end of the stock C and issecured by a boltz and Washer c, engaging into the outer end of theouter well 7). By this means a small cutter of high-speed steel may besecurely insorted in the stock and may be conveniently Where in aboring-tool of this class one end of the tool-stock has a bearingagainst the dead-center of the tool, the drillings get into the saidbearing and have a grinding action on the tool and on the support. lVithmy invention this difliculty is obviated. The tool can be perfectlyalined between centers, and it freely turns on a lubricatedjournalbearing. In other words, the stock in which the cutter is securedcarries its own journal, the stock having a driving engagement with thelive-center and the journal being supported by the dead-center.

Having described my invention, I claim A boring-tool for a suitableactuating-machine, comprising a tool-stock provided with a cutter, oneend of the tool-stock being adapted to be held by the live element ofthe actuating-machine, the other end of the stock being provided with ajournal-sleeve adapted to beengaged by the dead element of theactuating-machine, whereby the tool-stock is rotated in a self-supportedjournal-bearing, substantially as described.

In testimony whereof I have hereunto set my hand.

WILLIAM LODGE.

WVitnesses: I

OLIVER B. KAIsER, LEO ODONNELL:

